i'm bob woodruff for "nightline" in new york. >> our thanks to bob woodruff. "the impossible" opens december 21st, and just today, watts was nominated for a screen actors guild award. the buzz begins. >>> still ahead, are you feeling as lucky as they are? today just may be your day. 12-12-12. ♪ [ engine revs ] ♪ ♪ [ male announcer ] the mercedes-benz winter event is back, with the perfect vehicle that's just right for you, no matter which list you're on. [ santa ] ho, ho, ho, ho! [ male announcer ] lease a 2013 c250 for $349 a month at your local mercedes-benz dealer. >>> are you superstitious? then 12-12-12 -- today, that is -- will mean a lot to you. countless people around the globe chose today to buy lotto tickets, schedule c-sections or get hitched. we asked abc's lucky guy, nick watt, to visit the mecca of good fortune, las vegas. >> reporter: we're counting down to midnight to december 12th, 2012. we're in vegas. >> welcome to the world famous little white chapel. in about five minutes, it will be 12-12-12 and all these couples will be married and